Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

mcs/class/System/System.Diagnostics/ProcessStartInfo.cs

@@ -47,12 +47,12 @@ namespace System.Diagnostics
 	public sealed class ProcessStartInfo 
 	{
 		/* keep these fields in this order and in sync with metadata/process.h */
-		private string arguments = "";
+		private string arguments;
 		private IntPtr error_dialog_parent_handle = (IntPtr)0;
-		private string filename = "";
-		private string verb = "";
-		private string working_directory = "";
-		private ProcessStringDictionary envVars;
+		private string filename;
+		private string verb;
+		private string working_directory;
+		private StringDictionary envVars;
 		private bool create_no_window = false;
 		private bool error_dialog = false;
 		private bool redirect_standard_error = false;
@@ -87,7 +87,7 @@ namespace System.Diagnostics
 		[NotifyParentPropertyAttribute (true)]
 		public string Arguments {
 			get {
-				return(arguments);
+				return arguments ?? string.Empty;
 			}
 			set {
 				arguments = value;
@@ -113,7 +113,15 @@ namespace System.Diagnostics
 		public StringDictionary EnvironmentVariables {
 			get {
 				if (envVars == null) {
-					envVars = new ProcessStringDictionary ();
+					// check for non-Unix platforms - see FAQ for more details
+					// http://www.mono-project.com/FAQ:_Technical#How_to_detect_the_execution_platform_.3F
+					int platform = (int) Environment.OSVersion.Platform;
+					if ((platform != 4) && (platform != 128)) {
+						envVars = new StringDictionary ();
+					} else {
+						envVars = new CaseSensitiveStringDictionary ();						
+					}
+
 					foreach (DictionaryEntry entry in Environment.GetEnvironmentVariables ())
 						envVars.Add ((string) entry.Key, (string) entry.Value);
 				}
@@ -155,7 +163,7 @@ namespace System.Diagnostics
 		[NotifyParentPropertyAttribute (true)]
 		public string FileName {
 			get {
-				return(filename);
+				return filename ?? string.Empty;
 			}
 			set {
 				filename = value;
@@ -187,7 +195,7 @@ namespace System.Diagnostics
 		}
 		
 		[DefaultValue (false)]
-		[MonitoringDescription ("Standart output of this process is redirected.")]
+		[MonitoringDescription ("Standard output of this process is redirected.")]
 		[NotifyParentPropertyAttribute (true)]
 		public bool RedirectStandardOutput {
 			get {
@@ -226,7 +234,7 @@ namespace System.Diagnostics
 		[NotifyParentPropertyAttribute (true)]
 		public string Verb {
 			get {
-				return(verb);
+				return verb ?? string.Empty;
 			}
 			set {
 				verb = value;
@@ -238,21 +246,20 @@ namespace System.Diagnostics
 		[DesignerSerializationVisibility (DesignerSerializationVisibility.Hidden), Browsable (false)]
 		public string[] Verbs {
 			get {
-				string ext = filename == null | filename.Length == 0 ? 
-					null : Path.GetExtension (filename);
-				if (ext == null)
-					return empty;
-
 #if MOBILE
 				return empty;
 #else
-
 				switch (Environment.OSVersion.Platform) {
 				case (PlatformID)4:
 				case (PlatformID)6:
 				case (PlatformID)128:
 					return empty; // no verb on non-Windows
 				default:
+					string ext = filename == null | filename.Length == 0 ?
+						null : Path.GetExtension (filename);
+					if (ext == null)
+						return empty;
+
 					RegistryKey rk = null, rk2 = null, rk3 = null;
 					try {
 						rk = Registry.ClassesRoot.OpenSubKey (ext);
@@ -292,10 +299,10 @@ namespace System.Diagnostics
 		[NotifyParentPropertyAttribute (true)]
 		public string WorkingDirectory {
 			get {
-				return(working_directory);
+				return working_directory ?? string.Empty;
 			}
 			set {
-				working_directory = value == null ? String.Empty : value;
+				working_directory = value;
 			}
 		}
 
@@ -307,13 +314,13 @@ namespace System.Diagnostics
 
 		[NotifyParentPropertyAttribute (true)]
 		public string UserName {
-			get { return username; }
+			get { return username ?? string.Empty; }
 			set { username = value; }
 		}
 
 		[NotifyParentPropertyAttribute (true)]
 		public string Domain {
-			get { return domain; }
+			get { return domain ?? string.Empty; }
 			set { domain = value; }
 		}